JP2004127315A - Apparatus and method for realizing cooperative session - Google Patents

Apparatus and method for realizing cooperative session Download PDF

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JP2004127315A
JP2004127315A JP2003395044A JP2003395044A JP2004127315A JP 2004127315 A JP2004127315 A JP 2004127315A JP 2003395044 A JP2003395044 A JP 2003395044A JP 2003395044 A JP2003395044 A JP 2003395044A JP 2004127315 A JP2004127315 A JP 2004127315A
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session
surrogate
browser
user
data
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Vinod Anupam
ヴィノッド アヌパム
Narain H Gehani
ナリアン エッチ.ジェハニ
Kenneth R Rodemann
ケネス アール.ロードマン
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Nokia of America Corp
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Lucent Technologies Inc
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/10Office automation; Time management
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90Details of database functions independent of the retrieved data types
    • G06F16/95Retrieval from the web
    • G06F16/954Navigation, e.g. using categorised browsing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2216/00Indexing scheme relating to additional aspects of information retrieval not explicitly covered by G06F16/00 and subgroups
    • G06F2216/15Synchronised browsing

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus and a method for realizing a cooperative session via a communication network without requiring a special browser. <P>SOLUTION: The apparatus includes: an interface which communicates with at least one device via the communication network for receiving a programming code from a source located outside the apparatus; and a processor for transmitting information to the at least one device to generate a surrogate for realizing the session based upon the programming code. <P>COPYRIGHT: (C)2004,JPO

Description

 本発明は、通信ネットワークを通じてユーザ間で通信を行うシステムおよび方法に関し、特に、ワールドワイドウェブ(WWW)上で情報の協調的ブラウジングおよび双方向(対話的)通信を行うシステムおよび方法に関する。 The present invention relates to a system and method for communicating between users through a communication network, and more particularly, to a system and method for cooperative browsing and interactive (interactive) communication of information on the World Wide Web (WWW).

 コンピュータユーザは、インターネットとして知られる、コンピュータネットワークからなる広大な国際ネットワーク上で多くのリソースにアクセスすることができる。WWWは、インターネットのグラフィカルサブネットワークである。Netscapeブラウザのような普通の「ウェブブラウザ」ソフトウェアにより、ユーザは、WWW上のウェブサーバによって提供されるインターネット情報あるいはサービスに直ちにアクセスすることができる。 Computer users can access many resources on a vast international network of computer networks known as the Internet. WWW is a graphical sub-network of the Internet. Ordinary "web browser" software, such as the Netscape browser, allows a user to immediately access Internet information or services provided by a web server on the WWW.

 多くのインターネットサービスはユーザ間の通信を可能にしている。例えば、複数のコンピュータユーザが、「テキストチャット」サービスを提供する指定されたウェブサーバにアクセスすることにより、リアルタイムで互いにテキストで双方向に通信することが可能である。 イ ン タ ー ネ ッ ト Many Internet services allow communication between users. For example, multiple computer users can communicate bi-directionally in text with each other in real time by accessing a designated web server that offers a "text chat" service.

 また、コンピュータユーザは、Shared Mosaicブラウザを用いてウェブブラウジング体験を共有することも可能である。このためには、各ユーザはコンピュータ上にShared Mosaicソフトウェアの自分のコピーを有することが要求される。ユーザと仲間の間のリンクを確立するため、ユーザは、例えば、電子メールや電話により、ユーザの特定のブラウザを識別するインターネットプロトコル(IP)ポート番号を事前に仲間に通知する必要がある。その後、仲間は、それぞれのコンピュータ上でそれぞれのブラウザを起動し、通知されたIPポート番号を入力することにより、ユーザのコンピュータと仲間のコンピュータの間にインターネットを通じてリンクを確立する。ユーザは、インターネットのあるウェブサイトを訪れているときに、ブラウザによって与えられる選択肢を選択して、確立されたリンクを通じてそのウェブサイトからの同じ情報を仲間と共有することができる。 Computer users can also share their web browsing experience using the Shared Mosaic browser. This requires each user to have their own copy of the Shared Mosaic software on the computer. To establish a link between the user and the buddy, the user must provide the buddy with an Internet Protocol (IP) port number that identifies the user's particular browser, for example, by email or telephone. The buddy then launches a respective browser on each computer and establishes a link over the Internet between the user's computer and the buddy's computer by entering the notified IP port number. When a user is visiting a website on the Internet, they can select the option provided by the browser and share the same information from that website with their peers through established links.

 Shared Mosaic型のシステムは、ユーザとその仲間がリアルタイムで同じウェブ情報を共有することができるという点では好ましいが、そのアプリケーションはある面では不利であると認められる。特に、より一般的なさまざまなブラウザが使用されているのにもかかわらず、従来のシステムを利用するためには、ユーザと仲間はそれぞれ同一の特殊なブラウザ(例えば、Shared Mosaicブラウザ)を有する必要がある。 Shared Mosaic-type systems are preferred in that users and their colleagues can share the same web information in real time, but their applications are perceived as disadvantageous in some respects. In particular, in order to use the legacy system, users and peers must each have the same specialized browser (eg, Shared Mosaic browser), despite the use of a variety of more common browsers. There is.

 これに対して、本発明は、上記の問題点を解決する。本発明によれば、各ユーザが協調的なウェブブラウジングセッションに参加したいときに、ユーザは、ユーザのコンピュータ上にサロゲート(代理)を作成するためのモバイル(可搬性)コードをユーザのコンピュータに送信するシステムにアクセスする。同じセッションにおいてユーザに対して作成されるサロゲートは、システム内の少なくとも1つのコントローラによって接続され、サロゲートは、コントローラと、ユーザのコンピュータ上のそれぞれのブラウザとの間のインタフェースとして作用する。ブラウザは、互いに異なっていてもよい。そのセッションのユーザが、あるブラウザでウェブサイトアドレスを変更すると、対応するサロゲートがその新しいアドレスを取得して、インターネットを通じて同じセッションの他のサロゲートに送信する。その後、他の各サロゲートは、それぞれのブラウザに対して、これに従ってウェブアドレスを変更するよう指示する。このようにして、あるセッションのユーザは、ウェブサイトからウェブサイトへ同期して移動することが可能となり、リアルタイムで情報を共有することになる。 On the other hand, the present invention solves the above problems. In accordance with the present invention, when each user wants to participate in a collaborative web browsing session, the user sends a mobile code to the user's computer to create a surrogate on the user's computer. Access the system you want. Surrogates created for the user in the same session are connected by at least one controller in the system, and the surrogate acts as an interface between the controller and a respective browser on the user's computer. Browsers may be different from each other. When the user of the session changes the website address in one browser, the corresponding surrogate gets the new address and sends it over the Internet to other surrogates in the same session. Thereafter, each other surrogate instructs each browser to change the web address accordingly. In this way, users in a session can move synchronously from website to website, sharing information in real time.

 図1に、本発明の原理を実現するサーバシステム100を示す。サーバシステム100は、ウェブサーバとしてワールドワイドウェブ(WWW)に接続される。システム100の動作は、Netscapeブラウザのような標準的なウェブブラウザ、標準的なハイパーテキスト転送プロトコル(HTTP)およびハイパーテキストマークアップ言語(HTML)に対応している。とりわけ、本発明によれば、システム100は、ユーザに、(a)WWW上のさまざまなウェブサイトのHTML文書の協調的ブラウジング、および(b)ユーザ間のリアルタイムの双方向通信というサービスを提供する。特に、システム100によれば、協調的ブラウジングセッション中に、複数のユーザ(共同作業者)は、ユニフォームリソースロケータ(URL)によってアドレス可能なウェブサイトからの情報を同期的かつ協調的にブラウズ(閲覧)することが可能となる。また、共同作業者は、例えばテキストチャット通信を通じて相互に対話することも可能である。さらに、システム100によれば、ユーザは、進行中のセッションに自由に参加すること、および、進行中のセッションから自由に退出することが可能であり、また、システム100は、変化するセッション数および特定のセッションの共同作業者の数を収容するように容量を拡大縮小することが可能である。 FIG. 1 shows a server system 100 for realizing the principle of the present invention. The server system 100 is connected to the World Wide Web (WWW) as a web server. The operation of system 100 is compatible with standard web browsers such as the Netscape browser, standard hypertext transfer protocol (HTTP), and hypertext markup language (HTML). In particular, in accordance with the present invention, system 100 provides users with the services of (a) collaborative browsing of HTML documents on various websites on the WWW, and (b) real-time interactive communication between users. . In particular, according to the system 100, during a collaborative browsing session, multiple users (collaborators) synchronously and cooperatively browse information from websites addressable by a uniform resource locator (URL). ). The co-workers can also interact with each other through, for example, text chat communication. Further, according to the system 100, the user is free to participate in and exit from the ongoing session, and the system 100 is capable of changing the number of sessions and The capacity can be scaled to accommodate the number of collaborators for a particular session.

 図1に示されるように、ユーザは、コンピュータU−1を利用して、所定のURLでWWWを通じてシステム100にアクセスすることが可能である。コンピュータU−1は、Netscapeブラウザのような標準的なウェブブラウザ151が動作する従来のパーソナルコンピュータ(PC)でよい。U−1がリンク105を通じてシステム100に接続されると、システム100内のマネージャ107は、ウェブブラウザ151と、コモンゲートウェイインタフェース(CGI)を有するHTTPサーバ109を通じてU−1との通信を開始する。 (1) As shown in FIG. 1, the user can access the system 100 through the WWW at a predetermined URL using the computer U-1. Computer U-1 may be a conventional personal computer (PC) running a standard web browser 151 such as a Netscape browser. When U-1 is connected to system 100 via link 105, manager 107 in system 100 initiates communication with U-1 through web browser 151 and HTTP server 109 having a common gateway interface (CGI).

 マネージャ107は、ユーザが協調的ブラウジングセッションを確立するのを助けるサービスルーチンからなる。図2および図3に、本発明によるサービスルーチンのステップを示す。ステップ201で、マネージャ107はホームページがU−1に表示されるようにする。このホームページは、ユーザに挨拶し、システム100によって提供されるサービスを説明する。次に、ステップ203で、マネージャ107は、U−1から、ユーザ情報を引き出す。この情報には、ユーザ識別(ID)、パスワードおよびその他の、そのユーザが権限のあるユーザであることを確かめるのに必要な管理データが含まれる。ステップ205で、マネージャ107は、ユーザがセッションを作成したいか、それとも、進行中のセッションに参加したいかについてU−1に問い合わせる。ここで、U−1のユーザはセッションを作成することを選択したとする。ステップ207で、マネージャ107は、ユーザに対して、作成するセッションの詳細(例えば、セッションの目的あるいは話題)、および、それが秘密セッションであるかそれとも公開セッションであるかを入力するよう促す。例えば、秘密セッションの場合、共同作業者となりたい者は、参加するためには、セッションを作成したユーザのユーザIDによってこのユーザが誰であるかを明らかにしなければならない。公開セッションの場合、セッションのトピックはリストされ、共同作業者となりたい者により検索可能である。 Manager 107 consists of service routines that help the user establish a collaborative browsing session. 2 and 3 show the steps of the service routine according to the invention. In step 201, the manager 107 causes the home page to be displayed on U-1. This home page greets the user and describes the services provided by the system 100. Next, in step 203, the manager 107 extracts user information from U-1. This information includes the user identification (ID), password, and other administrative data needed to verify that the user is an authorized user. At step 205, the manager 107 queries U-1 if the user wants to create a session or join a session in progress. Here, it is assumed that the user of U-1 has selected to create a session. At step 207, manager 107 prompts the user to enter details of the session to be created (eg, the purpose or topic of the session) and whether it is a secret or public session. For example, in the case of a secret session, those who want to become collaborators must identify who this user is by the user ID of the user who created the session in order to participate. In the case of a public session, the topics in the session are listed and are searchable by those who want to be collaborators.

 この例では、U−1のユーザは、作成するセッションは公開であり、セッションの目的は自動車の購入であるとする。ステップ209で、マネージャ107は、新たなセッションの開始に進み、サロゲート153をコンピュータU−1のブラウザ151内に作成する。このために、システム100は、標準的なJAVA言語のような可搬性プログラミング言語による可搬性コードをコンピュータU−1に送信する。この例では、可搬性コードはJAVAアプレットの形式であるとする。サロゲート153は、アプレットがコンピュータU−1に到達して、ブラウザ151内で実行を開始するときに実現される。サロゲート153については以下でさらに説明するが、今のところ、セッションを実行するためにブラウザを補助するように作用することを知っていれば十分である。 In this example, it is assumed that the user U-1 creates a public session and the purpose of the session is to purchase a car. In step 209, the manager 107 proceeds to start a new session, and creates a surrogate 153 in the browser 151 of the computer U-1. To this end, the system 100 sends a portable code in a portable programming language such as the standard JAVA language to the computer U-1. In this example, assume that the portable code is in the form of a JAVA applet. The surrogate 153 is realized when the applet reaches the computer U-1 and starts executing in the browser 151. Surrogate 153 is described further below, but for now it is sufficient to know that it acts to assist the browser in performing the session.

 この例では新しいセッションであるため、ステップ211で、マネージャ107は、このセッションを管理し制御するように、新たなコントローラ111を割り当てる。ステップ213で、マネージャ107は、リンク113を通じてコントローラ111をサロゲート153に接続し、同時にリンク105を切断する。 た め In this example, since the session is a new session, in step 211, the manager 107 allocates a new controller 111 to manage and control this session. In step 213, the manager 107 connects the controller 111 to the surrogate 153 via the link 113, and simultaneously disconnects the link 105.

 サロゲート153は、ブラウザ151とコントローラ111の間のインタフェースとして作用する。とりわけ、サロゲート153は、ブラウザとのユーザ対話をモニタし、ユーザ対話をコントローラ111に報告する。 The surrogate 153 functions as an interface between the browser 151 and the controller 111. In particular, surrogate 153 monitors user interactions with the browser and reports user interactions to controller 111.

 この時点で注意すべき点であるが、サロゲート153は、オンデマンドでU−1に送信されU−1上で実行されたJAVAアプレットを用いて実現されており、従来のアプリケーションの場合のように事前にユーザコンピュータ上にインストールされあるいは維持されるソフトウェアは不要である。従って、Netscapeブラウザのような標準的なJAVA対応ブラウザを利用して本発明を実現することが可能である。換言すれば、システム100は、本発明のサービスを利用するために特殊なブラウザソフトウェアを有することをユーザに要求しない。 It should be noted at this point that the surrogate 153 is implemented using a JAVA applet that is sent to U-1 on demand and executed on U-1, as in the case of conventional applications. No software is previously installed or maintained on the user computer. Therefore, the present invention can be realized using a standard JAVA-compatible browser such as a Netscape browser. In other words, the system 100 does not require the user to have special browser software to use the services of the present invention.

 新たなセッションが開始した後、コンピュータU−1のユーザは、ブラウザ151で、自動車のウェブサイトあるいはその他のウェブサイトにURLを変更して、さまざまな車のモデルやその仕様に関する情報を取得する。新しいURLはサロゲート153によってコントローラ111に送信され、この新しいURLは記録され、同じセッションの他の共同作業者がいれば、その共同作業者のサロゲートに送られる。同時に、ブラウザ151は、この新しいURLのウェブサーバにアクセスし、コンピュータU−1上に、そのウェブサーバによって提供されるHTML文書を開く。 After the new session starts, the user of the computer U-1 changes the URL to the automobile website or another website using the browser 151 to obtain information on various car models and their specifications. The new URL is sent by the surrogate 153 to the controller 111, and the new URL is recorded and sent to the co-worker's surrogate, if any, in the same session. At the same time, the browser 151 accesses the web server of the new URL and opens the HTML document provided by the web server on the computer U-1.

 第2のユーザが、コンピュータU−2を利用して、所定のURLのシステム100にアクセスし、進行中のセッションに参加することが可能である。コンピュータU−2がHTTPサーバ109へのリンク(図示せず)を確立した後、マネージャ107は、上記と同様にして、図2のステップ201および203を行う。しかし、ステップ205で、この例ではU−2のユーザは進行中のセッションへの参加を選択する。この場合、図3のステップ302で、マネージャ107は、U−2に対して、この第2ユーザが参加したいのは秘密セッションかそれとも公開セッションかについて問い合わせる。この例では、第2ユーザは公開セッションへの参加を選択したとすると、マネージャ107はステップ306に進む。そうでない場合は、ステップ304に示すように、第2ユーザは、セッションの作成者のユーザIDによって、参加する秘密セッションが何であるかを明らかにする必要がある。 A second user can use the computer U-2 to access the system 100 at a predetermined URL and participate in an ongoing session. After the computer U-2 establishes a link (not shown) to the HTTP server 109, the manager 107 performs steps 201 and 203 of FIG. 2 in the same manner as described above. However, at step 205, in this example, user U-2 chooses to join the ongoing session. In this case, in step 302 of FIG. 3, the manager 107 inquires of U-2 whether the second user wants to participate in a secret session or a public session. In this example, assuming that the second user has selected to participate in the public session, the manager 107 proceeds to step 306. Otherwise, as shown in step 304, the second user needs to identify what the secret session to join is by the user ID of the creator of the session.

 ステップ306で、マネージャ107は、コンピュータU−1のユーザによって作成された自動車購入セッションを含むすべての進行中のセッションのリストをコンピュータU−2に表示する。次に、マネージャ107はステップ308に進み、第2ユーザによって選択されたセッションを判定する。この例では、第2ユーザは、リストされた話題を、マウスデバイスを用いてポイントしクリックすることによって自動車購入セッションに参加することを選択したとする。ステップ310で、サロゲート173が、前に説明したのと同様にして、コンピュータU−2上のブラウザ171内に作成される。このブラウザは、本発明によれば、ブラウザ151と異なっていてもよい。サロゲート173が作成され、自動車購入セッションがコントローラ111に割り当てられたことを知ると、ステップ312で、マネージャ107は、コントローラ111を、リンク175を通じてサロゲート170に接続する。 At step 306, manager 107 displays on computer U-2 a list of all ongoing sessions, including car purchase sessions, created by the user of computer U-1. Next, the manager 107 proceeds to step 308 and determines the session selected by the second user. In this example, it is assumed that the second user has selected to participate in the car purchase session by pointing and clicking on the listed topic using a mouse device. At step 310, a surrogate 173 is created in browser 171 on computer U-2, as described previously. This browser may be different from browser 151 according to the present invention. Once the surrogate 173 has been created and knows that the car purchase session has been assigned to the controller 111, at step 312 the manager 107 connects the controller 111 to the surrogate 170 via the link 175.

 この時点で、コントローラ111によって、接続された各共同作業者のコンピュータへ、新たな共同作業者の存在についてのメッセージが送られる。その後、U−2のユーザには、セッションが通ったURLの系列を訪れてその履歴を概観する機会が与えられる。このURLの系列は、セッションが進行するにつれてコントローラ111に記録され更新されている。また、U−2のユーザには、他の共同作業者と同期して新たなHTML文書をブラウズするオプションも与えられる。このオプションが実行されると、コントローラ111は、現在のURLをサロゲート173に送る。サロゲート173は、ウェブブラウザ171に、この現在のURLのHTML文書を開くよう指示する。 At this point, the controller 111 sends a message about the presence of the new co-worker to the computer of each connected co-worker. Thereafter, the user of U-2 is given an opportunity to visit a series of URLs through which the session has passed and to overview the history. This URL series is recorded and updated in the controller 111 as the session progresses. U-2 users are also given the option to browse for new HTML documents in sync with other collaborators. When this option is executed, the controller 111 sends the current URL to the surrogate 173. The surrogate 173 instructs the web browser 171 to open the HTML document of the current URL.

 自動車購入セッションの間、ブラウザ151がURLを変更すると、その新しいURL情報はサロゲート153によって取得され、サロゲート153はこの情報を、コントローラ111を介して他のすべての共同作業者のサロゲートへ通知する。その後、各サロゲートは、それぞれのブラウザに、この新しいURLのHTML文書を開くよう指示する。こうして、セッションが進行するにつれて、共同作業者は、URLからURLへと同期的に異動して文書をブラウズすることが可能となる。 When the browser 151 changes the URL during the car purchase session, the new URL information is obtained by the surrogate 153, and the surrogate 153 notifies the surrogate of all other collaborators via the controller 111. Thereafter, each surrogate instructs each browser to open the HTML document at this new URL. Thus, as the session progresses, collaborators can move synchronously from URL to URL and browse documents.

 この特定実施例では、セッションの作成者は、そのセッションを先導することを除いては、他の共同作業者と同じ能力を与えられる。さらに、コントローラ111に接続されたサロゲートは、共同作業者が、テキストで相互にリアルタイムで双方向通信することが可能なようにプログラムされる。共同作業者は、HTML文書を開きながら、マウスデバイスを用いてコンピュータ上で指定されたアイコンをポイントしクリックして、自動車に関する意見を交換するためにテキストチャット接続を形成する。しかし、理解されるように、当業者であれば、コントローラ111が何らかのアクセス制御を行うようにプログラムすることも可能である。例えば、コントローラ111が、協調的セッション中に、異なる共同作業者には異なる能力を与えることも可能である。また、コントローラ111が優先度方式を実施することにより、共同作業者が代わる代わるセッションを先導し相互に通信することも可能である。 In this particular embodiment, the creator of the session is given the same capabilities as the other collaborators, except that they lead the session. In addition, the surrogates connected to the controller 111 are programmed to allow co-workers to communicate bi-directionally in text with each other in real time. The co-worker, while opening the HTML document, uses a mouse device to point and click on the designated icon on the computer to form a text chat connection to exchange opinions about the car. However, as will be appreciated, those skilled in the art can also program the controller 111 to perform some access control. For example, the controller 111 may provide different co-workers with different capabilities during a collaborative session. In addition, when the controller 111 implements the priority method, it is possible for the co-worker to lead an alternate session and communicate with each other.

 セッションを作成すること、または、進行中のセッションに参加することを求める他のコンピュータユーザは、上記のU−1あるいはU−2と同様のプロセスを実行する。しかし、コントローラによって制御される特定のセッションに多くの共同作業者が参加すると、コントローラは、ある時点で過負荷になる可能性がある。システム100のサーバベースのアーキテクチャではあらゆるユーザの接続に関する情報がマネージャ107に存在するため、システム容量は、サービス品質に影響を与えることなく、増加する共同作業者を収容するように容易に拡張可能である。コントローラにおいて、共同作業者数が所定のしきい値に到達すると、マネージャ107は新しいコントローラを使用して、過剰の共同作業者を接続する。同じセッションに対するこの新しいコントローラと既存のコントローラは、階層的に動的に再編成され、相互の通信および調整を行い、同期的にセッションを実行する。図4に、そのような階層の例を示す。既存のコントローラ(Eとマークされた円で示す)と、新しいコントローラ(Nとマークされた円で示す)はスタートポロジーを形成する。この階層では、コントローラ388は情報センタとして作用し、あるコントローラから他のすべてのコントローラへ効率的に情報を分配する。 Other computer users seeking to create a session or join an ongoing session perform a process similar to U-1 or U-2 above. However, if many collaborators participate in a particular session controlled by the controller, the controller can be overloaded at some point. In the server-based architecture of the system 100, information about every user's connection resides in the manager 107, so that system capacity can be easily expanded to accommodate an increasing number of collaborators without affecting service quality. is there. At the controller, when the number of collaborators reaches a predetermined threshold, the manager 107 uses the new controller to connect the excess collaborators. The new and existing controllers for the same session are dynamically reorganized hierarchically, communicate and coordinate with each other, and execute sessions synchronously. FIG. 4 shows an example of such a hierarchy. The existing controller (indicated by a circle marked E) and the new controller (indicated by a circle marked N) form a star topology. In this hierarchy, the controller 388 acts as an information center, effectively distributing information from one controller to all other controllers.

 さらに、多くのコントローラが関わると、システム100の初期容量は尽きる可能性がある。この場合も、本発明によるシステム100のアーキテクチャにより、システム100に容易に吸収させることが可能な追加ハードウェアを用いて新しいコントローラを設けることが可能である。 In addition, the initial capacity of the system 100 can be exhausted when many controllers are involved. Again, the architecture of the system 100 according to the present invention allows a new controller to be provided with additional hardware that can be easily absorbed by the system 100.

 同様に、セッション数が所定のしきい値を超えるときには、マネージャ107と同様の複数のマネージャを設け、これらのマネージャは、図4と同様の階層に動的に再編成される。 Similarly, when the number of sessions exceeds a predetermined threshold, a plurality of managers similar to the manager 107 are provided, and these managers are dynamically reorganized into a hierarchy similar to that of FIG.

 以上、本発明の実施例について説明したが、さまざまな変形例が可能である。例えば、実施例では、共同作業者間のテキストチャット通信機能がサロゲートの協力により実現される。サロゲートを用いて、「テキストチャット」通信に加えて、あるいはその代わりに、他の通信手段を設けることも可能である。そのような他の通信手段には、標準的な電話、インターネット電話、パケット電話およびビデオ会議機能が含まれる。 Although the embodiments of the present invention have been described above, various modifications are possible. For example, in the embodiment, the text chat communication function between the co-workers is realized by the cooperation of the surrogate. Surrogates may be used to provide other means of communication in addition to or instead of "text chat" communication. Such other communication means include standard telephone, Internet telephone, packet telephone and video conferencing capabilities.

 さらに重要なこととして、システム100は、例えばサービス販売員が、製品の販売、あるいは、顧客との請求書の問題点の解決をしようとする場合に、サービス産業にとって非常に有効である。販売の場合、サービス販売員(例えばU−1のユーザ)と顧客(例えばU−2のユーザ)が、システム100にアクセスし、あるセッションに参加して、コンピュータネットワーク(例えばWWW)を通じて関連する製品データベース(例えばウェブサイト)に協調的にアクセスし、リアルタイムで相互に対話的に通信して販売を完了することが可能である。請求書の問題点の場合、サービス販売員と顧客はあるセッションに参加し、代わる代わる関連するデータベースを参照して、リアルタイムで相互に対話的に通信し、請求書の問題点を解決することができる。 More importantly, the system 100 is very useful for the service industry, for example, when a service sales person is trying to sell a product or solve a billing problem with a customer. In the case of a sale, a service clerk (e.g., a U-1 user) and a customer (e.g., a U-2 user) access system 100, participate in a session, and access a related product through a computer network (e.g., WWW). It is possible to collaboratively access a database (eg, a website) and communicate interactively with one another in real time to complete a sale. In the case of an invoice problem, the service sales representative and the customer can participate in a session, consult each other's related databases and interact with each other in real time to solve the invoice problem. it can.

 さらに、実施例の協調的セッションでは、URLを変更したブラウザのサロゲートがコントローラを介して他の共同作業者のサロゲートへ新しいURL情報を送る。その後、他の各サロゲートはそれぞれのウェブブラウザにその新しいURLのHTML文書を開くよう指示する。これに対して、URLを共有する代わりに、共同作業者は、HTML文書の内容を共有することも可能である。この代替法では、サロゲートは、対応するブラウザによって開かれた新しいURLのHTML文書のコピーを取得し、それを、コントローラを通じて、他のサロゲートに送る。他のサロゲートは、それぞれのウェブブラウザに、受け取ったコピーを表示するよう指示する。 In addition, in the collaborative session of the embodiment, the surrogate of the browser whose URL has been changed sends new URL information to the surrogate of another collaborator via the controller. Thereafter, each other surrogate instructs its web browser to open the HTML document at the new URL. On the other hand, instead of sharing the URL, the collaborator can also share the contents of the HTML document. In this alternative, the surrogate gets a copy of the HTML document at the new URL opened by the corresponding browser and sends it through the controller to the other surrogates. Other surrogates instruct each web browser to display the received copy.

 しかし、上記のURL共有法と内容共有法では異なる効果を生じることがある。URL共有法では、各共同作業者が独立にその新しいURLにアクセスして文書を取得すると、そのURLに過大なトラフィックが発生することがある。実際、一部の共同作業者は文書にアクセスすることができるが、他の共同作業者はウェブサーバが過負荷となったためにアクセスを拒否されるという可能性がある。内容共有法では、ウェブサーバから一度だけ文書を取得することによって、そのような過負荷は避けられる。 However, the above URL sharing method and content sharing method may have different effects. In the URL sharing method, when each collaborator independently accesses the new URL to obtain a document, excessive traffic may be generated at the URL. In fact, some collaborators may be able to access the document, while others may be denied access because the web server is overloaded. With the content sharing method, such overload is avoided by retrieving the document only once from the web server.

 さらに、URL共有法では、共同作業者は同一の文書を見ていない可能性がある。例えば、文書が、そのウェブサイトが訪問された回数を記録するフィールドを含む場合、各共同作業者が見ている文書は少なくともそのフィールドの示される数については異なる。従って、URL共有法は、2人の共同作業者が同一の文書を受け取ることができるべきではないような場合には有効である。例として、請求書の問題点の解決の場合、サービス販売員は顧客よりも多くのデータを有することが好ましい。例えば、顧客に提示されるものに加えて、サービス販売員は、文書から、顧客に対する評価(良い顧客か悪い顧客か)を見たいことがある。この評価は秘密である。内容共有法では、このようなデータのカスタマイズは容易には実現可能ではないが、URL共有法では、このカスタマイズは、サービス販売員に特別のユーザIDを割り当てることにより比較的簡単である。データベースが認識可能な特別IDにより、データベースは、サービス販売員と顧客に異なるバージョンの文書を送信する。 Furthermore, with the URL sharing method, collaborators may not be looking at the same document. For example, if a document includes a field that records the number of times the website has been visited, the document each collaborator sees will be different, at least for the indicated number of that field. Therefore, the URL sharing method is effective when two collaborators should not be able to receive the same document. By way of example, in the case of solving a billing problem, the service representative preferably has more data than the customer. For example, in addition to what is presented to a customer, a service salesperson may want to see a rating for a customer (good or bad) from a document. This evaluation is secret. In the content sharing method, such customization of data is not easily feasible, but in the URL sharing method, this customization is relatively simple by assigning a special user ID to the service salesperson. With a special ID that the database can recognize, the database sends different versions of the document to the service representative and the customer.

 最後に、上記では、システム100について、さまざまなシステム機能が別個の機能ブロックによって実行されるような形式で説明した。しかし、これらのブロックの機能の一部または全部を、例えば適当にプログラムしたプロセッサによって実現することも可能である。
[発明の効果]
Finally, system 100 has been described above in a manner that various system functions are performed by separate functional blocks. However, some or all of the functions of these blocks may be implemented, for example, by a suitably programmed processor.
[The invention's effect]

 以上述べたごとく、本発明によれば、一般的なブラウザを用いて、ユーザ間でリアルタイムで同じウェブ情報を共有することができる。 As described above, according to the present invention, the same web information can be shared between users in real time using a general browser.

本発明に従って、WWWを通じて情報を取得し交換するサーバシステムのブロック図である。FIG. 1 is a block diagram of a server system that acquires and exchanges information through the WWW according to the present invention. 図1のシステムの動作を実行する際のステップを示す流れ図である。2 is a flowchart showing steps in executing the operation of the system in FIG. 1. 図1のシステムの動作を実行する際のステップを示す流れ図である。2 is a flowchart showing steps in executing the operation of the system in FIG. 1. 図1のシステムの複数のコントローラの階層を示す図である。FIG. 2 is a diagram illustrating a hierarchy of a plurality of controllers in the system of FIG. 1.

符号の説明Explanation of reference numerals

100 サーバシステム
107 マネージャ
109 HTTPサーバ
151 ウェブブラウザ
153 サロゲート
171 ウェブブラウザ
173 サロゲート
388 コントローラ
100 server system 107 manager 109 HTTP server 151 web browser 153 surrogate 171 web browser 173 surrogate 388 controller

Claims (10)

 協調的セッションを実現するための装置であって、前記セッションにおいて前記装置は通信ネットワークを介して少なくとも1つのデバイスと通信し、
 前記装置の外部にあるソースからプログラミングコードを受信するためのインタフェースと、
 前記少なくとも1つのデバイスへ情報を送信して前記セッションを実現するサロゲートを、前記プログラミングコードに基づいて生成するプロセッサとを含む装置。
An apparatus for implementing a collaborative session, wherein the apparatus communicates with at least one device via a communication network in the session,
An interface for receiving programming code from a source external to the device;
A processor that generates a surrogate for transmitting the information to the at least one device to implement the session based on the programming code.
 前記セッションが、前記少なくとも1つのデバイスとの音声通信、テキスト通信、またはビデオ通信を行う、請求項1記載の装置。 The apparatus of claim 1, wherein the session performs a voice, text, or video communication with the at least one device.  前記プログラミングコードは可搬性プログラミング言語により作成される請求項1記載の装置。 The apparatus of claim 1, wherein the programming code is written in a portable programming language.  前記可搬性プログラミング言語はJAVA言語を含む請求項3記載の装置。 The apparatus of claim 3, wherein the portable programming language comprises a JAVA language.  前記プログラミングコードはJAVAアプレットの形式である請求項4記載の装置。 The apparatus of claim 4, wherein the programming code is in the form of a JAVA applet.  前記通信ネットワーク上に記憶されていてURLを介してアクセスされる情報をブラウズするためのブラウザをさらに含み、
 前記サロゲートが、前記ブラウザとのユーザのやりとりをモニタし、前記URLを前記少なくとも1つのデバイスへ送信する請求項1記載の装置。
A browser for browsing information stored on the communication network and accessed via a URL,
The apparatus of claim 1, wherein the surrogate monitors user interaction with the browser and sends the URL to the at least one device.
 通信ネットワークを介して少なくとも第1のデバイスと第2のデバイスとの間の協調的通信を実現するための方法であって、前記第1のデバイスは前記通信ネットワークから情報を得るためのブラウザを含み、前記方法が、
 前記第1のデバイス内にサロゲートを生成するため、前記第1のデバイスへプログラミングコードを提供するステップと、
 前記サロゲートによって、前記ブラウザから第1のデータを得るステップと、
 前記サロゲートから前記第1のデータを受信するステップと、
 前記第1のデータに基づいて、第2のデータを前記第2のデバイスへ送信するステップとを含む方法。
A method for implementing cooperative communication between at least a first device and a second device via a communication network, the first device including a browser for obtaining information from the communication network The method comprises:
Providing programming code to the first device to generate a surrogate in the first device;
Obtaining first data from the browser by the surrogate;
Receiving the first data from the surrogate;
Transmitting second data to the second device based on the first data.
 前記第2のデバイスから前記第1のデバイスへのデータの流れを制御するステップをさらに含む、請求項7記載の方法。 The method of claim 7, further comprising: controlling the flow of data from the second device to the first device.  前記通信を先導するために前記第1のデバイス及び前記第2のデバイスのうち1つを選択するステップをさらに含む請求項7記載の方法。 The method of claim 7, further comprising selecting one of the first device and the second device to direct the communication.  前記第1のデータが、前記第1のデバイスのユーザによって提供される選択されたデータを含む請求項7記載の方法。
The method of claim 7, wherein the first data comprises selected data provided by a user of the first device.
JP2003395044A 1996-07-16 2003-11-26 Apparatus and method for realizing cooperative session Withdrawn JP2004127315A (en)

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